Fbancis billingham



(No Model.)

' P. BILLINGHAM.

REFLECTOR AND LANTERN.

No. 390,835. Patented Oct. 9, 1888.

f lllll/E/VTOR ATTORNEY- M PETERS Pholo-Lilhcgnpher, Washington, D. C

FRANCIS BILLINGHAM, OF BROOKLYN, NE vV YORK.

REFLECTOR AND LANTERN.

SPECIPZCATION forming part of Letters Patent No. 390,835, dated October9, 1888.

Application filed l obruary 10, [8.57. Serial No. 227,16l. (No model.)

To aZZ whom it may concern.-

Be it known that I, FRANCIS BILLING-HAM, a citizen of the UnitedStates,and a resident of Brooklyn, county of Kings, and State of NewYork, have invented a new and useful 1mprovement in Reflectors andLanterns, of which the following is a specification.

My invention relates to reflectors and lanterns for gas-lighting of thatclass which are suspended from drop-pipes or brackets, the object beinga construction well adapted for the employment of a gasreheating deviceand the production of a simple, efflcient, and inexpensive device forholding and supporting two hemispherical globes, and is an improved modeof arranging and holding two spherical globes in such a way thatventilation is pro vided to prevent undue heating; in so positioning theburner-tips that the several flames will appear to be but one largeflame,while, in fact, v they do not conjoin or mingle together; also, inthe arrangement and combination of the parts. How I accomplish theseobjects will more fully appear, reference being bad to the accompanyingdrawings, forming part of the specification, in whic Figure 1 is avertical side view partly cut away to show the leading parts in section.Fig. 2 is a horizontal view of the arrangement of the burner-tips.

A, Fig. 1, is a vertical tube-conduit for gas, the lower portion ofwhich, A, serves as a heating retort for the gas. On the upper end is afitting, a, adapted for attachment to a bracket-support or gas-pipe. Ata suitable distance below this fitting and surrounding the tube A acanopy, 13, preferably of sheet metal, is secured in any suitablemanner, the tube A continuing to extend downward to socket-center H ofthe globe-holder G, which is joined to it by radial arms 0. At asuitabledistance below the tube A terminates in a hollow boss, D, from whichradiate horizontally short tubes d d, on the outer ends of which theburner-tips e e are so mounted that their jet-orifices will be in planesat right angles to the axis of said tubes and discharge the gas in jetsparallel to planes at right angles thereto. These tubes differ inlength, the shorter ones, (1, connecting their respective burner-tips inclose proximity to the tube A alternate with the larger ones, d, whichare sufficiently longer to connectand position their respectiveburnertips 6 outside and beyond the range of the jets of gas or flamesissuing from the burnerlips e on the shorter tubes, d. When flamesproduced from jets arranged in this manner are viewed from a littledistance,they will look like one large undivided flame.

Crown N is a metallic band, preferably embossed, scalloped, or otherwiseornamented, which surmounts dome E. The crown has radial arms P, cent-erring, R, and setscrews S, its objects being to keep the tube in thecenter of upper opening of the dome. The outer ring or globe-holder, G,is adapted to hold two globes at the same time. One globe on its topsurface is secured in place by the ordinary means of an upturned flangeor lugs provided with thumb-screws. The other'globe is suspended fromits under surface preferably by means of three or more two pronged lugsor clamps, which are fixed on the under side of the holder G andextenddownward and inward. The innerprongs, K, being horizontal, aredesigned to limit the upward passage of the globe. The outer prongs, K,being pro vided with thumb-screws I, are designed to project on theoutside of the globe-rim and far enough below its flange to allow thethumbscrews I to be screwed in under said flange, thus providing asupporting-bearing and securing the under globe in place.

The downward extension of prongs K K below the line of'the lower edge ofshade-ring G and the consequent position of semi-globe F afford a freeentry of the air to interior of the globe.

The globes E and F, in the form of a hemispherical shell with circularopenings in each at the top and bottom, respectively, and with outwardturned flanges at their rims, are of the ordinary form; but I make theupper one, E, largerin diameter at its rim than the under one, F, is atits rim, the object being to secure or allow an annular space for thepassage of air-currents between them when they are arranged in place onthe holder G. Thus I secure an efficient means of preventing undueheating, by'which the danger of cracking the upper globe is very muchavoided, as will be seen. The cooling air-currents pass through in thecourse shown by the arrow.

I prefer to make the upper globe, E, of opalescent glass or porcelainand the under one of crystal or lucent colored glass. This, however, isbut a matter of taste, as any suitable material may be used.

The tube A becomes very hot when the gas is burning, because of thenearness ot' the flames. Therefore it serves as a p reheati ng-re tort,the use of which I in no wise claim to be new, except in the novelty ofits combination with other parts.

A modification of this reflecting'lamp would be made if the globe-holderarms were bent or curved still more, as shown by dotted lines, so thatthey would be invisible when used in a porcelain dome and when seen atan angle. The lower half of globe F, if clear, might be dispensed with,itthe other combined parts are used, without materially altering theeffective ness of the invention when used indoors. It is also obviousthat when a comparatively small light is reqniredi'or instance, such asin a small show-windowarms (1 may be dispensed with and the short arms dused only in combination with the other parts shown.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In reflector-lanterns forgas-lighting, the combination of a ringglobe'holder having a central supporting-socket and radiating connecting arms, an outer ring or holder and pronged lugs or clamps securedthereto, and two hemispherical globeseetions supported by said ring andclamps and forming a sphere inclosing the central snpportingsocket andthe radiating arms, substantially as shown and described.

2. In reflector-lanterns for gas-lighting, the combination of a globeholder consisting of a central socket, radiating arms,a ring or holder,downwardly-extending lugs or clamps secured thereto, and twohemispherical globe-sections supported one below the other, for thepurpose substantially as herein shown and described.

3. In reflectors and lanterns forgas-lighting, a vertical tube orconduit for gas and a central ring situated near its upper extremity,arms radiating therefrom, and a crown and set'screw, in combination witha globe-holder having a central supporting-socket and radiatingconnecting arms, an outer ring or holder and logs or clamps securedthereto, and two hemispherical globe sections, constructed as described,whereby the vertical tube will be kept in position within the center ofthe globe sections, and one of the said globeseetions will be supportedand the other suspended by the said ring-holder.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses,this 8th day of February, 1887.

FRANCIS BILLINGHAM.

IVitnesses:

E. F. GENNnn'r, 11 \VHITNEY.

